Dizzy/Nauseous Blood Pressure is normal...

Brynn
Anyone had this feeling? 
I was fine when I woke up this morning then about an hour into work I started feeling very light headed & nauseous to the point that if I stood up I felt like I would fall down. The nurse took my blood pressure & it was fine. I ate breakfast, too. My principal had a coworker take me home. I'm wondering if I should wait to see if it goes away or go ahead & call my doctor? Baby has been moving fine this morning. I'll be 27 weeks tomorrow.